US9236785B2 - Regulator of vehicle AC generator - Google Patents

Regulator of vehicle AC generator Download PDF

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Publication number
US9236785B2
US9236785B2 US13/502,436 US200913502436A US9236785B2 US 9236785 B2 US9236785 B2 US 9236785B2 US 200913502436 A US200913502436 A US 200913502436A US 9236785 B2 US9236785 B2 US 9236785B2
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United States
Prior art keywords
regulator
mount portion
vehicle
attachment plane
protrusion
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Expired - Fee Related, expires
Application number
US13/502,436
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English (en)
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US20120200204A1 (en
Inventor
Hirotaka Kimata
Kazunori Tanaka
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Assigned to MITSUBISHI ELECTRIC CORPORATION reassignment MITSUBISHI ELECTRIC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KIMATA, HIROTAKA, TANAKA, KAZUNORI
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/16—Synchronous generators
    • H02K19/36—Structural association of synchronous generators with auxiliary electric devices influencing the characteristic of the generator or controlling the generator, e.g. with impedances or switches
    • H02K19/365—Structural association of synchronous generators with auxiliary electric devices influencing the characteristic of the generator or controlling the generator, e.g. with impedances or switches with a voltage regulator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/14—Means for supporting or protecting brushes or brush holders
    • H02K5/141—Means for supporting or protecting brushes or brush holders for cooperation with slip-rings

Definitions

  • the present invention relates to a regulator that is a voltage control apparatus of a vehicle AC generator, and more particularly, to an IC regulator of a mold package type and an attachment structure of a regulator holder provided with an IC regulator mount portion.
  • a regulator that is a voltage control apparatus of a vehicle AC generator is furnished with a function of regulating an output voltage of a generator by controlling ON and OFF of a field current flown through a field winding.
  • regulators used recently are furnished with a communication function with an external in-vehicle device and a function of suppressing an abrupt rise in drive torque of a generator by making an increase in output current moderate when an electrical load increases.
  • the mainstream of a voltage control circuit in the regulator is in the form of integrated circuit (IC) chips and an IC regulator of a mold package type in which a voltage control circuit and connection terminals of the voltage control circuit and an external circuit are molded integrally (see, for example, Patent Document 1) is used in some cases.
  • the IC regulator of the mold package type is mounted on a regulator holder having an integrally molded insert terminal to which a connection terminal of the IC regulator is joined.
  • a connection terminal of the IC regulator is joined.
  • Patent Document 1 describes an example where positioning is performed by bringing a protrusion provided to an IC regulator mount portion of the regulator holder into engagement with a through-hole provided to the IC regulator so that mechanical fixation is achieved.
  • Patent Document 1 JP-A-2004-248354 (FIG. 8 and FIG. 9)
  • connection terminals provided to both of the IC regulator and the IC regulator mount portion have a narrow terminal width, the occurrence of positional displacement in a width direction makes it difficult to secure a joint area and therefore may possibly give rise to poor joint.
  • the IC regulator In order to fix the IC regulator completely, another process for example to deform the protrusion of the engagement portion is required and productivity is deteriorated. Also, the IC regulator is provided with a space to make the through-hole on the same plane as an IC regulator attachment surface outside the range of the IC regulator circuit. Accordingly, a plane size of the IC regulator main body becomes large and a large space has to be secured for the IC regulator mount portion.
  • the invention is devised to solve the problems discussed above and has an object to provide a regulator of a vehicle AC generator not only capable of enhancing attachment reliability and productivity of an IC regulator owing to achievement of high-accurate positioning and mechanical fixation simply by a press-fit process, but also capable of keeping a size of an attachment plane to a minimum without having to increase sizes of attachment planes of the IC regulator and an IC regulator mount portion.
  • a regulator of a vehicle AC generator of the invention includes an IC regulator of a mold package type in which an IC chip portion forming a voltage control circuit and connection terminals of the IC chip portion and an external circuit are integrally molded, and a regulator holder having an IC regulator mount portion on which the IC regulator is mounted.
  • a press-fit fitting structure is provided between an attachment plane of the IC regulator mount portion and an attachment plane of the IC regulator or between an inner wall surface of the IC regulator mount portion and an outer wall surface of the IC regulator.
  • a size of an attachment plane can be kept to a minimum without having to increase sizes of the attachment planes the IC regulator and the IC regulator mount portion. It thus becomes possible to reduce the cost owing to space saving in an IC regulator attachment surface.
  • FIG. 1 is a schematic cross section showing an overall structure of a vehicle AC generator on which is mounted a regulator according to a first embodiment of the invention.
  • FIG. 2 is a plan view of a regulator holder according to the first embodiment of the invention.
  • FIG. 3 is a plan view and a side view of an IC regulator of a mold package type.
  • FIG. 4 is a view showing a first specific example of a fitting structure in an IC regulator mount portion according to the first embodiment of the invention.
  • FIG. 5 is a view showing a second specific example of the fitting structure in the IC regulator mount portion according to the first embodiment of the invention.
  • FIG. 6 is a view showing a third specific example of the fitting structure in the IC regulator mount portion according to the first embodiment of the invention.
  • FIG. 7 is a view showing a fourth specific example of the fitting structure in the IC regulator amount portion according to the first embodiment of the invention.
  • FIG. 8 is a view showing an example of shapes of a protrusion and a recess to form the fitting structure in attachment planes of the IC regulator mount portion and the IC regulator.
  • FIG. 9 is a view showing an example of shapes of a protrusion provided to an inner wall of the IC regulator mount portion and an outer wall of the IC regulator.
  • FIG. 10 is a view showing a fitting range of the fitting structure and a lead-in shape for the IC regulator according to the first embodiment of the invention.
  • FIG. 11 is a view showing another example of the regulator holder to which the invention is applied.
  • FIG. 1 is a schematic cross section of a vehicle AC generator on which is mounted a regulator according to a first embodiment of the invention.
  • FIG. 2 is a plan view of a regulator holder.
  • FIG. 3 is a plan view and a side view of an IC regulator of a mold package type.
  • the vehicle AC generator has a front bracket 1 and a rear bracket 2 , and on the inside of these brackets, a shaft 4 with a pulley 3 attached to one end, a claw pole rotor 5 attached to the shaft 4 , a fan 6 and a fan 7 attached to the rotor 5 on the side of the front bracket 1 and on the side of the rear bracket 2 , respectively, a slip ring 8 attached to the shaft 4 and used to supply a current to the rotor 5 , a brush 9 sliding on the slip ring 8 , a stator iron core 10 fixed to the front bracket 1 and the rear bracket 2 , a stator coil 11 wound around the stator iron core 10 , a rectifier 12 electrically connected to the stator coil 11 and rectifying an AC current generated in the stator coil 11 to a DC current, a regulator 13 adjusting an AC voltage generated in the stator coil 11 , and a regulator cooling heat sink 14 attached to the regulator 13 .
  • the regulator 13 is formed of a regulator holder 100 shown in FIG. 2 and an IC regulator 200 of a mold package type shown in FIG. 3 .
  • the regulator holder 100 includes an IC regulator mount portion 110 , an insert terminal 120 integrally molded with the regulator holder 100 , a connector portion 130 connected to a vehicle-end connector, and the brush 9 .
  • One end of the insert terminal 120 is exposed inside the IC regulator mount portion 110 and the other end is disposed in a connection portion to the connector 130 , the rectifier 12 , and the rear bracket 2 .
  • the IC regulator 200 is formed of an IC chip portion 210 and an IC regulator terminal 220 that are integrally molded using a mold. After the IC regulator 200 is housed in the IC regulator mount portion 110 , the IC regulator terminal 220 is finally joined to the insert terminal 120 exposed inside the IC regulator mount portion 110 .
  • FIG. 4 shows an example of an IC regulator mount portion 110 A that is the IC regulator mount portion 110 provided with at least one convex protrusion 140 A within an attachment plane for the IC regulator 200 , and an IC regulator 200 A provided with at least one concave recess 230 A on a contact surface to the IC regulator mount portion 110 A.
  • the convex protrusion 140 A and the concave recess 230 A are of a structure to fit to each other and there is at least one contact portion.
  • the protrusion 140 A and the recess 230 A can be set with a minor change of forming dies. Moreover, there is no need to change a plane size of the IC regulator mount portion 110 and a size of the attachment plane for the IC regulator 200 . Hence, this structure has a cost advantage.
  • FIG. 5 shows a second fitting structure and it shows an example of an IC regulator mount portion 110 B that is the IC regulator mount portion 110 provided with at least one concave recess 140 B within an attachment plane for the IC regulator 200 , and an IC regulator 200 B provided with at least one convex protrusion 230 B on the side of a contact surface to the IC regulator mount portion 110 B.
  • the recess 140 B and the protrusion 230 B are of a structure to fit to each other and there is at least one contact portion.
  • the recess 140 B and the protrusion 230 B can be set with only a minor change of forming dies and a plane size of the IC regulator mount portion 110 and a size of the attachment plane for the IC regulator 200 remain unchanged.
  • FIG. 6 shows a third fitting structure and it shows an example of an IC regulator mount portion 110 C that is the IC regulator mount portion 110 provided with at least one convex protrusion 140 C on one or more surfaces of an inner wall thereof, and an IC regulator 200 C to be attached to the IC regulator mount portion 110 C.
  • the protrusion 140 C is of a structure to fit to an outside wall 230 C of the IC regulator 200 C with respect to each other and there is at least one contact portion.
  • the protrusion 140 C can be set by only a minor change of a forming die of the IC regulator mount portion 110 C. Also, a space is secured originally between the inner wall of the IC regulator mount portion 110 and the outer wall of the IC regulator 200 and the protrusion 140 C is added in this space. Hence, a plane size of the IC regulator mount portion 110 and a size of the attachment plane for the IC regulator 200 remain unchanged.
  • FIG. 7 shows the third fitting structure and it shows an example of an IC regulator 200 D that is the IC regulator 200 provided with at least one convex protrusion 230 D on one or more surfaces of an outer wall thereof, and an IC regulator mount portion 110 D.
  • the protrusion 230 D is of a structure to fit to an inner wall 140 D of the IC regulator mount portion 110 D with respect to each other and there is at least one contact portion.
  • the protrusion 230 D can be set with only a minor change of a forming die of the IC regulator 200 D.
  • the protrusion 230 D fits into a space between the inner wall of the IC regulator mount portion 110 and the outer wall of the IC regulator 200 , a plane size of the IC regulator mount portion 110 remains unchanged.
  • a protrusion or a recess for the use of fitting is provided to the IC regulator mount portion 110 and the IC regulator 200 or either one of these components and the press-fit fitting structure is formed between the attachment plane of the IC regulator mount portion and the attachment plane of the IC regulator, or between the inner wall surface of the IC regulator mount portion and the outer wall surface of the IC regulator. It thus becomes possible to achieve high-accurate positioning and the mechanical fixation of the both components simply by a press-fit process without having to change a plane space of the IC regulator mount portion 110 .
  • fitting structure is not limited to a case where the both components have concave and convex shapes with respect to each other, and includes a case where either one of the components has a convex shape and the both components are planes.
  • Shapes of the protrusion 140 A and the recess 230 A, the recess 140 B and the protrusion 230 B, the protrusion 140 C, and the protrusion 230 D are not limited to the shapes shown in FIG. 4 through FIG. 7 and the shapes can be changed arbitrarily.
  • the shapes of FIG. 4 and FIG. 5 may be shapes having across section of substantially a circular shape or a polygonal shape as are shown in FIG. 8 .
  • the shapes of FIG. 6 and FIG. 7 may be shapes having a cross section of substantially an arc shape or a polygonal shape as are shown in FIG. 9 .
  • a fitting range (a range across which the both components are in contact with each other by press-fitting) 150 secures at least one-fourth of a thickness of the IC regulator except where sufficient fixing strength is obtained.
  • the protrusion 140 C may be provided with an inclination 160 as is shown in FIG. 10 to have shape of the insertion guide for the IC regulator 200 at the time of attachment.
  • An angle of the inclination 160 can be set arbitrarily.
  • the invention is not limited to a regulator holder provided with the connector portion 130 and the brush 9 as is shown in FIG. 2 .
  • the invention is also applicable to a regulator holder of an arbitrary shape having the IC regulator mount portion 110 as an example of FIG. 11 .
  • the invention is applied to an AC generator mounted on a vehicle.
  • 140 A, 140 B, 140 C, and 140 D fitting portion on the regulator holder side
  • 230 A, 230 B, 230 C, and 240 D fitting portion on the IC regulator side

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Synchronous Machinery (AREA)
  • Push-Button Switches (AREA)
US13/502,436 2009-11-20 2009-11-20 Regulator of vehicle AC generator Expired - Fee Related US9236785B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2009/069716 WO2011061852A1 (ja) 2009-11-20 2009-11-20 車両用交流発電機のレギュレータ

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US20120200204A1 US20120200204A1 (en) 2012-08-09
US9236785B2 true US9236785B2 (en) 2016-01-12

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US13/502,436 Expired - Fee Related US9236785B2 (en) 2009-11-20 2009-11-20 Regulator of vehicle AC generator

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US (1) US9236785B2 (ja)
EP (1) EP2503674B1 (ja)
JP (1) JP5636374B2 (ja)
CN (1) CN102630364B (ja)
WO (1) WO2011061852A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180091026A1 (en) * 2015-06-02 2018-03-29 Mitsubishi Electric Corporation Rotary electric machine and regulator manufacturing method
JP6490207B2 (ja) * 2015-06-05 2019-03-27 三菱電機株式会社 車両用交流発電機のレギュレータ

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0723860U (ja) 1993-10-04 1995-05-02 黒田精工株式会社 ガスケットの位置決め構造
US6301096B1 (en) 2000-03-18 2001-10-09 Philips Electronics North America Corporation Tamper-proof ballast enclosure
US20040155540A1 (en) 2003-02-12 2004-08-12 Denso Corporation Vehicle ac generator
US20060022544A1 (en) * 2004-07-30 2006-02-02 Ichinomiya Denki Co., Ltd. Stator and brushless motor
JP2006267128A (ja) 2006-06-26 2006-10-05 Hochiki Corp 煙感知器
US20070046113A1 (en) * 2005-08-23 2007-03-01 Denso Corporation Positioning member and voltage control device for vehicle alternator having the positioning member
US20080238225A1 (en) 2007-03-26 2008-10-02 Mitsubishi Electric Corporation Terminal device for vehicle ac generator
US8022585B2 (en) * 2007-03-28 2011-09-20 Mitsubishi Corporation In-vehicle AC generator having an enclosed regulator holding unit

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Publication number Priority date Publication date Assignee Title
JPS49128679A (ja) * 1973-04-09 1974-12-10
JPS53101275A (en) * 1978-02-13 1978-09-04 Hitachi Ltd Resin seal-type semiconductor device
JPH0317637U (ja) * 1989-06-30 1991-02-21
JPH10144824A (ja) * 1996-11-08 1998-05-29 Sony Corp 半導体パッケージおよび半導体パッケージ収納用のトレイ
CN1257599C (zh) * 1999-04-23 2006-05-24 建准电机工业股份有限公司 一种电路板的固定装置
FR2825534B1 (fr) * 2001-05-31 2003-09-05 Valeo Equip Electr Moteur Procede de fabrication d'un rotor de machine electrique tournante
CN201230420Y (zh) * 2008-05-30 2009-04-29 麻天启 计算机周边装置的壳体的枢接结构

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0723860U (ja) 1993-10-04 1995-05-02 黒田精工株式会社 ガスケットの位置決め構造
US6301096B1 (en) 2000-03-18 2001-10-09 Philips Electronics North America Corporation Tamper-proof ballast enclosure
CN1380954A (zh) 2000-03-18 2002-11-20 皇家菲利浦电子有限公司 防撬镇流器外罩
US20040155540A1 (en) 2003-02-12 2004-08-12 Denso Corporation Vehicle ac generator
JP2004248354A (ja) 2003-02-12 2004-09-02 Denso Corp 車両用交流発電機
US7141900B2 (en) * 2003-02-12 2006-11-28 Denso Corporation Connector case for vehicle ac generator
US20060022544A1 (en) * 2004-07-30 2006-02-02 Ichinomiya Denki Co., Ltd. Stator and brushless motor
US20070046113A1 (en) * 2005-08-23 2007-03-01 Denso Corporation Positioning member and voltage control device for vehicle alternator having the positioning member
JP2006267128A (ja) 2006-06-26 2006-10-05 Hochiki Corp 煙感知器
US20080238225A1 (en) 2007-03-26 2008-10-02 Mitsubishi Electric Corporation Terminal device for vehicle ac generator
JP2008245361A (ja) 2007-03-26 2008-10-09 Mitsubishi Electric Corp 車両用交流発電機の端子装置
US8022585B2 (en) * 2007-03-28 2011-09-20 Mitsubishi Corporation In-vehicle AC generator having an enclosed regulator holding unit

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* Cited by examiner, † Cited by third party
Title
Chinese Office Action corresponding to Chinese Patent Application No. 200980162581.6, dated Jul. 15, 2014.
International Search Report for PCT/JP2009/069716 dated Jan. 12, 2010.
Japanese Office Action, issued Oct. 8, 2013, Patent Application No. 2011-541772.

Also Published As

Publication number Publication date
WO2011061852A1 (ja) 2011-05-26
JPWO2011061852A1 (ja) 2013-04-04
EP2503674B1 (en) 2022-08-10
JP5636374B2 (ja) 2014-12-03
CN102630364B (zh) 2016-02-24
EP2503674A4 (en) 2017-05-03
US20120200204A1 (en) 2012-08-09
CN102630364A (zh) 2012-08-08
EP2503674A1 (en) 2012-09-26

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